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Technical Information

For Ultra Racing to reach the desired certification strict performance tests are conducted. First the bars are bolted to 3 different types of jigs to simulate the load that occurs on road and also beyond.
These 3 types of jigs are Compression, Torsion and Flex.

The Compression Test

The compression test is when forces are applied along both sides of the bar. This will measure the maximum compression force that the bar can withstand making sure it surpasses any force that fast road or track use will create.

The Torsion Test

The next test is the torsion test, for this test torque is applied to one side of the bar. This will record the amount of twist that has occurred under the applied pressure.

The Flex Test

The third and final jig is to test the flex. Torque is applied to both ends to simulate the bar under heavy load which occurs in fast cornering or heavy braking.

Once all three tests have been completed the bars are then performance tested on track. Only once all of these tests are completed and passed will the bars go into mass production.

Mill / Test Certificate (Chemical Composition)

Specification

JIS 3101 SS 400 (Japan International Standard)

JIS G 3141 SPCC SD (Japan International Standard)

ASTM A 500 Grade A (American Standard)

BS 1387 (British Standard)

Steel vs Aluminium

Why we use Steel instead of Aluminium

First, steel is stronger than aluminium for the same size and thickness. In order for aluminium alloys to be at least the same strength as steel, it has to be at least double the thickness (steel 4mm = aluminium 8mm). When that happens, weight saving is not so apparent anymore. Of course there are also exotic materials and alloys that can match the strengths of steel, but the cost are astronomically high and therefore not very cost effective to bring into mass production.